Abstract: An electronic watch includes a power generating mechanism; a battery that is charged with power generated by the power generating mechanism; hands that include a second hand; a driving source that rotates the hands; a driving circuit that drives the driving source with power supplied by the battery; and a control circuit that controls the driving circuit. The control circuit executes a first stopping operation for stopping the driving circuit and the control circuit in a power saving mode for suppressing power consumption and when a first determination time elapses without any power being generated by the power generating mechanism. The control circuit executes a second stopping operation for stopping the driving circuit and the control circuit in the power saving mode and when a second determination time elapses while a voltage of the battery is at a level equal to or lower than a predetermined level.

Abstract: An electronic watch includes a power generating mechanism; a battery that is charged with power generated by the power generating mechanism; hands that include a second hand; a driving source that rotates the hands; a driving circuit that drives the driving source with power supplied by the battery; and a control circuit that controls the driving circuit. The control circuit executes a first stopping operation for stopping the driving circuit and the control circuit in a power saving mode for suppressing power consumption and when a first determination time elapses without any power being generated by the power generating mechanism. The control circuit executes a second stopping operation for stopping the driving circuit and the control circuit in the power saving mode and when a second determination time elapses while a voltage of the battery is at a level equal to or lower than a predetermined level.

Abstract: Provided is a satellite radio-controlled watch, which is capable of holding back a receiving operation when in a posture that does not allow normal reception of a satellite signal, and is capable of performing a receiving operation under conditions varied to suit the type of reference information to be obtained. The satellite radio-controlled watch includes: a reception circuit (31) for receiving a satellite signal; and a controller (47) for sequentially detecting a received light amount of the satellite radio-controlled watch, calculating a received light variation which is an amount of change of the received light amount, and controlling the reception circuit (31) to start an operation of receiving the satellite signal, based on the received light variation.

Abstract: A radio-controlled timepiece includes an oscillator circuit of which an oscillation condition can be varied by an oscillation condition adjustment circuit that adjusts an oscillation frequency, a frequency divider circuit that divides the oscillation frequency and generates a time measurement reference timing signal, a frequency adjustment circuit that adjusts the period of time measurement reference timing signal, a local oscillator circuit that uses the oscillation frequency as a reference frequency and outputs a local oscillation frequency, and a control circuit.

Abstract: A radio-controlled timepiece includes an oscillator circuit of which an oscillation condition can be varied by an oscillation condition adjustment circuit that adjusts an oscillation frequency, a frequency divider circuit that divides the oscillation frequency and generates a time measurement reference timing signal, a frequency adjustment circuit that adjusts the period of time measurement reference timing signal, a local oscillator circuit that uses the oscillation frequency as a reference frequency and outputs a local oscillation frequency, and a control circuit.

Abstract: Provided is a satellite radio-controlled watch, which is capable of holding back a receiving operation when in a posture that does not allow normal reception of a satellite signal, and is capable of performing a receiving operation under conditions varied to suit the type of reference information to be obtained. The satellite radio-controlled watch includes: a reception circuit (31) for receiving a satellite signal; and a controller (47) for sequentially detecting a received light amount of the satellite radio-controlled watch, calculating a received light variation which is an amount of change of the received light amount, and controlling the reception circuit (31) to start an operation of receiving the satellite signal, based on the received light variation.

Abstract: With the object of providing an electronic device having good radio signal receiving characteristics with a metal outer case housing therewithin an antenna section without restrictions imposed with regard to material or design, an electronic device minimally having an antenna section 32, an information processing means 33 for processing information that is captured by the antenna section 32, and a metal outer case 31, which houses therewithin the antenna section 32 and the information processing means 33, wherein the metal outer case is configured so that the antenna section 32 can receive magnetic flux from outside via the metal outer case 31 and can resonate, the metal outer case 31 minimally comprising a metal case body member 45 and a metal caseback member 41, and wherein a joining and fixing portion 400 between the metal case body member 45 and the metal caseback member 41 is not provided at a location or in the vicinity of at least a location opposite the substantially center part of the antenna section

Abstract: A radio controlled time piece 1 actively using a time-programmed receiving operation and a forced receiving operation with respect to a standard radio signal and having an object the enablement of highly accurate and efficient time correction by properly receiving time information or calendar information and the like by executing a minimum amount of receiving operations, having a receiving means 2, a timekeeping means 18, a display means 4, a control means 10 for controlling the drive condition of the timekeeping means 18, an external input means 7, and a control information storage means 8, wherein when performing singularly or consecutively a time-programmed receiving operation that operates when a prescribed timekeeping value of the timekeeping means is reached, based on a first receiving method and a forced reception operation which operates by the operation of the external input means 7, based on a second receiving operation method, the first receiving method of time-programmed receiving operation and th

Abstract: A clocking unit (27) that clocks a time; a display unit (3) that displays a time based on clock information from the clocking unit (27); a receiving unit (20) that receives standard radio waves from transmitting stations in at least two countries or regions; a second-synchronization detecting unit (23) that detects second-synchronization information (P3) from a demodulated signal (P2) obtained by the receiving unit (20); a transmitting station determining unit (25) that analyzes the demodulated signal (P2) based on the second-synchronization information (P3) to determine a transmitting station in a country or a region; and a decoding unit (26) decodes information included in the standard radio wave from the transmitting station determined by the transmitting station determining unit (25) to obtain time information are included, and the clock information of the clocking unit (27) is corrected based on the time information obtained by the decoding unit (26).

Abstract: With the object of providing an electronic device having good radio signal receiving characteristics with a metal outer case housing therewithin an antenna section without restrictions imposed with regard to material or design, an electronic device minimally having an antenna section 32, an information processing means 33 for processing information that is captured by the antenna section 32, and a metal outer case 31, which houses therewithin the antenna section 32 and the information processing means 33, wherein the metal outer case is configured so that the antenna section 32 can receive magnetic flux from outside via the metal outer case 31 and can resonate, the metal outer case 31 minimally comprising a metal case body member 45 and a metal caseback member 41, and wherein a joining and fixing portion 400 between the metal case body member 45 and the metal caseback member 41 is not provided at a location or in the vicinity of at least a location opposite the substantially center part of the antenna section

Abstract: A radio correcting timepiece that can reduce the influence of a radio wave situation of the standard radio wave having time information according to an area, and can make a correction to the exact time in a shorter time is provided. The radio correcting timepiece comprises a signal receiving means (1) for receiving a standard radio wave and a timepiece means (2) for correcting and displaying time on the basis of the time information outputted from the signal receiving means. The signal receiving means (1) can receive plural standard radio waves and includes memory means (1I) which is able to store signal receiving order of the plural standard radio waves. Since the plural standard radio waves can be received, the influence of a radio wave situation according to an area can be reduced and a correction to the exact time can be made in a shorter time by using the standard radio wave transmitted every minute.

Abstract: A radio-controlled timepiece includes a regional-information storage unit that stores information on a target time region, a receiving circuit that receives a standard frequency that contains UTC time information, and that outputs a received signal, a regional-time calculating unit that calculates a current time of the target time region based on the information on the target time region and the received signal, a display unit that displays the current time calculated, a display-time correcting unit that corrects the current time to be displayed in DST or in standard time in timing determined based on the current time when information on a DST switching day is included in the received signal.

Abstract: The invention is directed to obtaining a radio controlled timepiece that, in a case when the user who uses it moves from one country or one region to another where the time difference is different, has simplified an operation of correcting the time difference between the countries or regions and an operation of correcting the time difference due to daylight saving time's being executed.

Abstract: A radio controlled time piece 1 actively using a time-programmed receiving operation and a forced receiving operation with respect to a standard radio signal and having an object the enablement of highly accurate and efficient time correction by properly receiving time information or calendar information and the like by executing a minimum amount of receiving operations, having a receiving means 2, a timekeeping means 18, a display means 4, a control means 10 for controlling the drive condition of the timekeeping means 18, an external input means 7, and a control information storage means 8, wherein when performing singularly or consecutively a time-programmed receiving operation that operates when a prescribed timekeeping value of the timekeeping means is reached, based on a first receiving method and a forced reception operation which operates by the operation of the external input means 7, based on a second receiving operation method, the first receiving method of time-programmed receiving operation and th

Abstract: A clocking unit (27) that clocks a time; a display unit (3) that displays a time based on clock information from the clocking unit (27); a receiving unit (20) that receives standard radio waves from transmitting stations in at least two countries or regions; a second-synchronization detecting unit (23) that detects second-synchronization information (P3) from a demodulated signal (P2) obtained by the receiving unit (20); a transmitting station determining unit (25) that analyzes the demodulated signal (P2) based on the second-synchronization information (P3) to determine a transmitting station in a country or a region; and a decoding unit (26) decodes information included in the standard radio wave from the transmitting station determined by the transmitting station determining unit (25) to obtain time information are included, and the clock information of the clocking unit (27) is corrected based on the time information obtained by the decoding unit (26).

Abstract: The receiver receives the standard frequency signal that includes a time code. A sampling unit samples one bit of the received signal at 32 positions. A smoothing unit smoothens the result of sampling by dividing the 32 positions in two to four intervals and determines a value of the received signal in each interval. A waveform determining unit determines waveform of each bit of the received signal based on the value obtained in the smoothing unit. The decoding unit extracts the time code based on the determined waveform. A time unit correct the time based on the extracted time code.

Abstract: A radio-controlled timepiece includes a regional-information storage unit that stores information on a target time region, a receiving circuit that receives a standard frequency that contains UTC time information, and that outputs a received signal, a regional-time calculating unit that calculates a current time of the target time region based on the information on the target time region and the received signal, a display unit that displays the current time calculated, a display-time correcting unit that corrects the current time to be displayed in DST or in standard time in timing determined based on the current time when information on a DST switching day is included in the received signal.

Abstract: The invention is directed to obtaining a radio controlled timepiece that, in a case when the user who uses it moves from one country or one region to another where the time difference is different, has simplified an operation of correcting the time difference between the countries or regions and an operation of correcting the time difference due to daylight saving time's being executed.

Abstract: A radio correcting timepiece that can reduce the influence of a radio wave situation of the standard radio wave having time information according to an area, and can make a correction to the exact time in a shorter time is provided. The radio correcting timepiece comprises a signal receiving means (1) for receiving a standard radio wave and a timepiece means (2) for correcting and displaying time on the basis of the time information outputted from the signal receiving means. The signal receiving means (1) can receive plural standard radio waves and includes memory means (1I) which is able to store signal receiving order of the plural standard radio waves. Since the plural standard radio waves can be received, the influence of a radio wave situation according to an area can be reduced and a correction to the exact time can be made in a shorter time by using the standard radio wave transmitted every minute.

Abstract: The receiver receives the standard frequency signal that includes a time code. A sampling unit samples one bit of the received signal at 32 positions. A smoothing unit smoothens the result of sampling by dividing the 32 positions in two to four intervals and determines a value of the received signal in each interval. A waveform determining unit determines waveform of each bit of the received signal based on the value obtained in the smoothing unit. The decoding unit extracts the time code based on the determined waveform. A time unit correct the time based on the extracted time code.